package collection;

import com.sun.javafx.image.IntPixelGetter;

import java.util.ArrayList;
import java.util.List;

/**
 * List获取子集的操作
 */
public class ListDemo3 {
    public static void main(String[] args) {
        List<Integer> list = new ArrayList<>();
        for (int i=0;i<10;i++){
            list.add(i*10);
        }
        System.out.println("list:"+list);

        List<Integer> subList = list.subList(3,8);
        System.out.println("subList:"+subList);

        //将子集每个元素扩大10倍
        for (int i=0;i<subList.size();i++){
            subList.set(i,subList.get(i)*10);
        }
        System.out.println("subList:"+subList);
        System.out.println("list:"+list);


        //修改原集合
        list.set(3,1000);
        System.out.println("subList:"+subList);
        System.out.println("list:"+list);

        //删除原集合第一个元素则子集会出现内容同步异常
        list.remove(0);
        System.out.println("list:"+list);
        //原来=集合长度改变后,子集将不再能进行任何操作了,若操作则报错,但可以重新获取子集
        System.out.println("subList:"+subList);
    }
}
